Excavator



H. L. BARIUM.

EXCAV/WOR. nPPucATloN mlm MM s, 1,919.

Patented May 23, w22.

" 5 SHEETS-SHEET 'Z.

H. L. BARTON.V

ExCAvATo.

APP'ucATloN men MAY 9,'1919.

Patented May 23, 11922.'

5 SHEETS-SHEET 4.

H. L. BARTON.

ExcAvMoR, APPuc/TloN 'man MAY 9. 1919. n 1,416,933. Pntntd May 23,1922..

5 SHEETS-SHEET 5.

f@ M H nimma@ excavator,

i .in Fig. 6,

i l itl BARTN, 0F GARY, INDANA.

EXCAVATR.

riminese.

Specification of Letters Patent.

Patented May 23, i922.

Application tiled May 1919. Serial No. 295,898.

` To (x7/Z whom it may concern:`

Be it known that l, HENRY L. BAR'roN, a citizen ol' the United States,and a resident of the city of Gary, county of Lake, and `State ofIndiana, have invented certain new and use'lul Improvements inExcavators, of which the following .is aV specification.

My invention relates" to improvements in excavators, and has tor itsobject the provision of an improved construction .of this charactercapable oi a number of uses, which is of simple construction andeflicient in operation.

.Uther objects will appear hereinafter.

The invention consistsuin the combinations and arrangements of partshereinafter described 'and claimed.` l

"The invention will be best understood by reference to the accompanyingdrawings forming a in whichy Y Fig. 1"7 is a side view of an excavatorenibodyingthe invention, shown in one position of use, y y

Fig. 2,an enlarged detail section taken through the boom of saidexcavator, y

Fig. 3, a top plan view corresponding Fig. l, an enlarged longitudinalsection talren `through theconveyor employed in the Fig. 5 a top planview of said conveyorI shown detached,`

Fig.` 6, a view similar to Fig. l, but showing a modified form ofconstruction.

Fig. 7 an enlarged detail view of the .conveyor shownV in Fig. 6, l y.

Fig. 8, an end view of the conveyor shown Fig. 9, a top planview oftheexcavator shown in Fig. `6, and

Fig. 10, a topplan view of the conveyor shown in Fig. 6.

The form of construction illustrated in Figs. l to 5, inclusive,comprises a suitable boom ll, pivotally mounted, in the` usual.

way. on a suitable truck` l2 for swinging' vertically and horizontallyin theusual man-` ner. The boom 11 is `formed of two oppositely arrangedchannel irons positioned `with their open sides facing inwardly ortoward each other, and connected together at their uppersides by means.of a suitable lattice-work 13 to form av strong and rigid construction.Tracks in the form of angle irons Mare secured to the inner faces partof `this specification, and

oit said channel irons,' and a carriage l5 mounted upon rollers orwheels lo mounted to travel upon the tracks 14, as shown. Aconvcyor, inthe torni of an excavating scoop 17 is suspended, at one end, by meansol" hangersll, Ytrom a cross bolil 19 mounted on carriage lo below theboom ll. 'llhe carriage l5 carries depending rigid stop arms 20contacting with one wall oit' the conveyor 17 to limit the swing of saidconveyor on the pivot bolt 19 in one direction. .lt its other end theconveyor 17 carries guide rollers 21 ruiming upon the under sid-s ot thechannel iron sides ot the boomll and serving to limit the swing oi' saidconveyor in the other direction. Up-

wardly extending guide arms or lingers 22 `are also provided toco-opei'ate with the rollers Q'lto prevent the same from ruiming olli"of the channel irons or' the boom` ll.. Grooved guide pulleys 23 and 2liare mounted respectively on the carriage l5 and on the cross bolt whichholds the rollers 2l. and serve as a means for guiding a cable securedtothe outer end ofthe conveyor- '17. said cable being also extended oversuitable guide pulleys on the boom ll., as indicated. Another cable 26is secured to a bail 27 at the inner end of the conveyor 17, and alsoextends over suitable guide pulleys on the boom. ll. said cables 25 andQ6 extending respectively to drums 28 and 29 on the truclrlQ, which areoperable from indicated, and whereby the bottom portion 3l may betripped when desiredto dump the contents of the scoop conveyorl7.

By this arrangement it will be observed that the scoop conveyor 17 maybe readily manipulated alongl the boom 1l, as desired, to scoop up anddischarge the earth in diggingor tillingtrenches or the like.` It willbe observed that the cutting or `scooping -torce is applied directly tothe front or cutting end of the conveyor scoop and whereby theconstruction is greatly simplified and the necessity for great strengthin the connections betiveen the scoop and the carriage is obviated. Thisarrangement also automatically holds the rollers 21 in contact with theunder side of the boom. The construction is shown in Fig. 1 as employedin filling a trench, by scooping the excavated earth thereinto, and itWill be observed that the boom holds and guides the scraper conveyor inits Work, providing` a denite path oiitravel therefor and compelling`the posi tive operation thereof. Likewise, it will be observed that byadjusting the boom 11 to various inclinations, a trench may be dug` withthe scoop conveyor 17. Also. when desired, the convey/'or 17 may bereversed on the boom and operatively employed in the opposite direction,to ll or die,- a trench in Working' aivay trom the truck instead of'toward it, as indicated in Fig. 1. This may be accomplished bydisconnecting' the cables and removing the bolt 19, whereupon theconveyor or scoop 17 may be readily reversed in position and the cablesrca-connected with Correspondingparts.

1n the construction illustrated in Figs. 6. 7 8. 9 and 10, a lighterboom construction 34 is employed, and a somewhat different truclrconstruction 35 is indicated. Also, a slightly different form oitcarriage is shoivn arranged to travel upon the boom 34, and the conveyor37 is shown in the form of :i rigid scraper. Suitable cables areprovided, as indicated, for manipulatino,` the boom and the scraperconveyor 37, and it is thought that the operation of this device Will bereadilyunderstood from the illus tra-tions. This form of device is asimpler form than the one already described, and is consequently capableof more economical manufacture, although not capable oie such a .Widevariety of uses.

llilhile I have illustrated and described the preferred forms ofconstruction for carrying my invention into e'tl'ect, these are capableof variation and modification Without departing from the spirit oit theinvention. I, therefore, do not Wish to be limited to the precisedetails of construction set forth. but desire to avail myself of suchvariations and modifications as come Within ythe scope or' the appendedclaims.

Having described my invention` what 1 claim as new and desire to secureby Letters- Patent is l 1. An excavator comprising a boom; a. Wheeledcarriage mounted to travel on said boom.; a scoop conveyor pivotallymounted at itsrear end on said carriage; a guide roller at the forwardend oi said scoop resting loosely against the under side of said boom;an operating cable connected directly with the forward end of said scoopto draw said scoop through its operative movement;

and an operating cable operatively connected to draavsaid scoop throughits inoperaliro movement, substantially as described.

2. An excavator comprisino` boom; a Wheeled carriage mounted to travelupou said boom: af scoop conveyor piavitallj; mounted at/its roar end onsaid carriage; :r guidc roller at tho foi-pand cpd ol' szil scooprestino` loosely aojamst the under si. yz, oipw said boom; guide lingersoperatively con nected `with said scoop and loosely embrac-V ing tiesides ot said boom; and means 'for raciprocatinn` said scoop,subslaniially as dc scribed.

2. din excavator coniprisiuoy a boom; :i .vheeled carriapgc mounted totravel upon said boom; a scoop conveyor pivotall.Y mounted at its rearend on said carriage: a .cuide roller at thc forward cnd of said scooprestingloosely against the under sido o'l said boom; guide linoersoperativehv con-- nected with said scoop and loosely cuvliruo ine; the.sides oi' said boom; au opcruliufx cable connected directly With thc.fowsruwl end or' said scoop to draiv said scoop through its operativemovement: and ou operating cable operatively connected to dran' saidscoop through its inoperative movement. substantiallv as described.

4. An excavator comprising a boom. said boom consistinfr of tivo channelirons arranged with their open sides Facing inwardly: a latticcovorlrconnecting the uppcr sides oli said channel irons: a. tracl in thc formof* an angle iron secured to the inner tace ot .each of said channelirons: a carriarfo mounted upon rollers mounted to travel on said track:a convr-.yor scoop having one end pivotallv suspended on said carriage;a stop on said carriage liniitinqv tbc swing; oi said convevor in onedirection: rollers on thc other'cnd ol" said conveyor contacting withthe bottoms oi said channel irons to limit the svinc; ot said conveyorin the other di. rection: a hinged bottom l'or said conveyor: a trinpernormallyY holding` said bottom closed: a flexible cable for trippingsaid trigger to release said bottom; and cables and lguide pulleys onsaid boom.` said cables being connected with said conveyor ior movino'said conveyor and carriage to and fro along? said boom. substantially asdescribed.

5. In an excavator. the combination of a boom having `fruideivavssecured thereto: u pivotally mounted scoop conveyor mounted on saidlguidcwavs: Aguide rollers mounted on one end of' said scoop andengaging tbc under side oi: said boom: guide moans cooperating With saidrollers lor rctaininglf said scoop on said guideivays; und a pluralityof operating' cables 'For reciprocating said scoop to and fro' on saidguideivays, substantially as described.

6. 1n an excavator, the combination ot a boom having guideivays securedthereto; a

engaging the under side oi said boom; guide members'cri-operating withsaid guide means 'lor retaining said scoop on said guidevvays; andoperating cables connected to said scoop at its front and rear ends forreciprocating said carriage to and tre on said guideivays, substantiallyas described.

7. In an excavator, the combination of a boom having guidevvays securedthereto; a reciprocating carriage mounted on said guideways; scoopconveyor pivotally mounted on said carriage; guide lingers mounted onsaid scoop and loosely embracing the sides el said boom; a serrated`scraper blade integrally formed on said scoop; and an operating cableconnected to said scoop to draw said scoop through its operativemovement, substantially described.

53. An excavator comprising a boom :formed lrcm opposit'ely arrangedchannel members rigidly connected together; a guideway secured to theinner side ot each of said guide members; a scoop conveyor mounted onsaid guideweys; guide means loosely embracing said channel members forpreventing a lateral movement oit said scoop; a serrated scraper bladeintegrally formed on said scoop; and operating cables connected to saidscoop to draw said scoop through its operative and inoperative movement,substantially as described.

9. in excavator comprising a boom termed 'from channel members rigidlylined together; a carriage mounted on said boom; a scoop conveyorpivotally mounted on said carriage; guide means loosely embracing saidboom and said scoop; a serrated scraper blade integrally formed on therear portion ot said scoop, a trigger held trap door hingedly mounted onsaid blade; means for tripping said trigger.; an operating cableconnected to said scoop to draw said scoop through its operativemovement; and a eable connected to said scoop to draw said scoo) throuehits ino erative movement.

substantially as described.

l0, An excavator comprising a boom; annular shaped tracks secured tosaid boom; a roller carriage mounted on said tracks; a scoop conveyorpivotally mounted on said carriage; a guide member mounted on saidcarriage and loosely embracing the sides of said scoopg rollers mountedon the rear end oit said scoop and engaging the under surface ot saidboom; guide members cooperating with said rollers and loosely embracingthe sides ot said boom; and cables connected directly to said scooparranged to draw said scoop through its operative and inoperativemovement, substantially as described.

ll. ln an excavator, the combination of a boom having guidevvays, of areciprocating scoop conveyor mounted on said guidevvays; and guidingmeans operating with said scoop loosely embracing the sides of saidscoop and said boom, substantially as described. l l

12. ln an excavator', the combination of a boom having a reciprocatingscoop conveyor mounted thereon, of a serrated scraper blade; and guidemembers operating With said scoop loosely embracing said scoop and saidboom, substantially as described.

ln testimony whereof l have signed my name to this specication in thepresence of two subscribing Witnesses.

HENRY L. BARTON.

Vllitnesses:

Josemi R. l-l. Porre, B. Gr. RICHARDS.

